TABLE 1.
Concentration of immune components in unprocessed, bovine colostrum and serum from healthy cows
| Category | Immune component | Concn of immune component ina: |
|
|---|---|---|---|
| Unprocessed colostrum | Serum | ||
| Growth factors | EGF | ND | 0.5 ng/ml |
| GH | 9.4 ng/ml | 7.5 ng/ml | |
| IGF-1 | 428.1 pg/ml | 404.1 pg/ml | |
| TGF-β2 | ND | ND | |
| Antimicrobial protein | Lactoferrin | 1.6 ng/ml | 0.4 ng/ml |
| Cytokines | IFN-γ | ND | 191.2 pg/ml |
| IL-1β | 48.2 pg/ml | 45.9 pg/ml | |
| IL-2 | ND | 284.9 pg/ml | |
| IL-4 | 87.5 pg/ml | 166.9 pg/ml | |
| IL-6 | ND | ND | |
| TNF-α | 398.6 pg/ml | 133.6 pg/ml | |
| Ig class/subclass | Total IgG | 30.6 mg/ml | 15.9 mg/ml |
| IgG1 | 7.7 mg/ml | Not tested | |
| IgG2 | 0.3 mg/ml | Not tested | |
| IgA | 5.9 mg/ml | Not tested | |
a
ND, not detected (below detectable levels).